package com.newcapec.lesson3;

public class Demo1 {
    public static void main(String[] args) {
        int a;
        int b = 100;
        a = 200;

        //基本数据类型  8种
        //整型 byte short int long
        //浮点型 float double
        //字符型 char
        //布尔类型  boolean
        //隐式转换
        short num1 = 100;
        byte num2 = 111;
        char c1 = 'a';
        int result = c1+num2;

        short num3 = 100+200;
        System.out.println(num3);

        //引用数据类型  Integer String Object

    }
}
